Amrona AG

9 patents currently held · Updated Nov 14, 2026

18 more in force are now held by other companies

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Ending by 2030

Aug 2027

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.

1 fee due Jun 29, 2027
The maintenance fee for Inerting method and device for extinguishing a fire (US 9,220,937) comes due Jun 29, 2027. Unpaid by Dec 29, 2027, it lapses early.
1 fee due Nov 5, 2027
The maintenance fee for Method and system for preventing and/or extinguishing a fire (US 10,639,508) comes due Nov 5, 2027. Unpaid by May 5, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

Patents held now

Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.

Showing 1 to 9 of 9

Patent	Title	Status	Expires	Confidence
US 7,796,047	Apparatus for fire detection in an electrical equipment rack In force Term ends Aug 1, 2027 · From the USPTO record	In force	Term ends Aug 1, 2027	From the USPTO record
US 7,717,776	Method and apparatus for supplying additional air in a controlled manner In force Term ends Apr 22, 2028 · From the USPTO record	In force	Term ends Apr 22, 2028	From the USPTO record
US 7,673,694	Inertization device with nitrogen generator In force Term ends Jun 28, 2028 · From the USPTO record	In force	Term ends Jun 28, 2028	From the USPTO record
US 7,857,068	Inertization device with safety device In force Term ends Apr 4, 2029 · From the USPTO record	In force	Term ends Apr 4, 2029	From the USPTO record
US 8,875,801	Device for setting the leakage rate for a leakage at a gap-like opening In force Term ends Jan 2, 2030 · From the USPTO record	In force	Term ends Jan 2, 2030	From the USPTO record
US 9,220,937	Inerting method and device for extinguishing a fire In force Term ends Apr 17, 2031 · From the USPTO record	In force	Term ends Apr 17, 2031	From the USPTO record
US 9,347,677	Inerting method for preventing and/or extinguishing fire as well as inerting system to realize the method In force Term ends Dec 12, 2031 · From the USPTO record	In force	Term ends Dec 12, 2031	From the USPTO record
US 9,004,187	Inerting method for preventing and/or extinguishing fire as well as inerting system to realize the method In force Term ends Sep 8, 2033 · From the USPTO record	In force	Term ends Sep 8, 2033	From the USPTO record
US 10,639,508	Method and system for preventing and/or extinguishing a fire In force Term ends Jul 15, 2036 · From the USPTO record	In force	Term ends Jul 15, 2036	From the USPTO record

Also on record, not counted in the 9: 18 patents in force now held by others · 3 lapsed for an unpaid fee · 1 ended at full term. List them

Sources and methods

Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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Published applications

US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.

2 no status recorded

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